private void predictButton_Click(object sender, EventArgs e)
{
chart2.Series["Total"].Points.Clear();
PredictUsage pu = new PredictUsage();
double[] totalMean = pu.TotalCalculations(eventsData);
for (int i = 0; i < totalMean.Length; i++)
{
chart2.Series["Total"].Points.AddXY(i, totalMean[i]);
}
}